document.write( "Question 677536: When I was 2 years old, my sister was half of my age. Now I'm 80 years old, how old is my sister? \n" ); document.write( "
Algebra.Com's Answer #420926 by jim_thompson5910(35256)\"\" \"About 
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\"When I was 2 years old, my sister was half of my age\"\r
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\n" ); document.write( "\n" ); document.write( "means that your sister was 1 (since 1 is half of 2)\r
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\n" ); document.write( "\n" ); document.write( "Fast-forward 78 years and you are now 80 years old. So your sister is now 1+78 = 79 years old.
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